Ascertainment of cost of handling and transporting several classes of mail matter and conducting special services : Instruction letter D-d (series D), revised Aug. 1, 1923; time and expenditures, 2nd-class post offices.

Bibliographic Details
Corporate Author:	United States. Postmaster General
Format:	Government Document eBook
Language:	English
Published:	Washington : U.S. GPO, 1922.
Subjects:	United States. > Postmaster General. Electronic books.
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